Pass secret metadata to crypto extension manager for plugin search.

Closes-Bug: #1319992
Change-Id: I5f9c5957838bfb5351bc0970dae5fd8a17cac6a0
Fixed a typo in a comment

Change-Id: I2a29db3bd16f0eb3fb39743b74e622f366aa6578
Merge "Pass secret metadata to crypto extension manager for plugin search."